THIS AVALANCHE ADVISORY EXPIRED ON March 21, 2018 @ 6:23 am
Avalanche Advisory published on March 20, 2018 @ 6:23 am
Issued by Jeff Thompson - Idaho Panhandle Avalanche Center

Selkirks/Cabinets

bottom line

 Sunday night, a quick moving storm left 9-11'' of snow above 4500'. The snow fell on a firm frozen surface, giving it a nice plane to slide on.  As the new snow settles, it will become a stiffer slab and potentially produce larger avalanches. If temperatures rise in the next couple days (as they're forecasted to do), be aware of a increasing avalanche danger.  Wet slab avalanches are likely. Spring snowpack is here! Get it while it's frozen!

How to read the advisory

Selkirks/Cabinets

How to read the advisory

 Sunday night, a quick moving storm left 9-11'' of snow above 4500'. The snow fell on a firm frozen surface, giving it a nice plane to slide on.  As the new snow settles, it will become a stiffer slab and potentially produce larger avalanches. If temperatures rise in the next couple days (as they're forecasted to do), be aware of a increasing avalanche danger.  Wet slab avalanches are likely. Spring snowpack is here! Get it while it's frozen!

2. Moderate

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Above Treeline
Heightened avalanche conditions on specific terrain features. Evaluate snow and terrain carefully; identify features of concern.

2. Moderate

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Near Treeline
Heightened avalanche conditions on specific terrain features. Evaluate snow and terrain carefully; identify features of concern.

1. Low

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Below Treeline
Generally safe avalanche conditions. Watch for unstable snow on isolated terrain features.
    Heightened avalanche conditions on specific terrain features. Evaluate snow and terrain carefully; identify features of concern.
Avalanche Problem 1: Loose Wet
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There recent snow will start to stabilize unless the sun gets to it. If the sun and warm temperatures get to the new snow, it will increase the likelihood of avalanches. Looks for signs that mother nature gives us (small point release avalanches, pinwheels, cornice fall, etc) If your seeing signs of instability due to warm temperatures, that should be a red light. Don't take those warnings lightly.

Avalanche Problem 2: Deep Slab
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If the snowpack gets warm enough, it will have a tough time holding itself up. Once melting snow starts to move through the snowpack the likelihood of avalanches increases dramatically. We're entering a time period where larger, deeper avalanches are possible. If you're snowmobiling or skiing in the backcountry and you step off your equipment and find your boots punching into the snow, you're to late to be in avalanche terrain. The safest way to travel in avalanche terrain right now is to get out early and be off of slopes by time they start to warm up.

Weather and CURRENT CONDITIONS
Weather observations from the Region
0600 temperature: 37 deg. F.
Max. temperature in the last 24 hours: 41 deg. F.
Average wind direction during the last 24 hours: W
Average wind speed during the last 24 hours: 15 mph
Maximum wind gust in the last 24 hours: 33 mph
New snowfall in the last 24 hours: 1'' inches
Total snow depth: 130 inches
Two-Day Mountain Weather Forecast Produced in partnership with the Spokane NWS
For 2000 ft. to 4000 ft.
Tuesday Tuesday Night Wednesday
Weather: Mostly cloudy Mostly cloudy Partly sunny/Rain
Temperatures: 48 deg. F. 39 deg. F. 49 deg. F.
Wind Direction: SW S NE
Wind Speed: 4-6 4-6 3-5
Expected snowfall: 0 in. 0 in. 0 in.
For 4000 ft. to 6000 ft.
Tuesday Tuesday Night Wednesday
Weather: Mostly cloudy Mostly cloudy Chance of rain
Temperatures: 38 deg. F. 28 deg. F. 43 deg. F.
Wind Direction: SW SW SW
Wind Speed: 11-14 8-10 7-9
Expected snowfall: 0 in. 0 in. >.5'' in.
Disclaimer

Avalanche conditions change for better or worse continually. Backcountry travelers should be prepared to assess current conditions for themselves, plan their routes of travel accordingly, and never travel alone. Backcountry travelers can reduce their exposure to avalanche hazards by utilizing timbered trails and ridge routes and by avoiding open and exposed terrain with slope angles of 30 degrees or more. Backcountry travelers should carry the necessary avalanche rescue equipment such as a shovel, avalanche probe or probe ski poles, a rescue beacon and a well-equipped first aid kit.  For a recorded version of the Avalanche Advisory call (208)765-7323.